Published March 4, 2005
| Version v1
Journal article
Evidence for high-m secondary islands induced by large low-m islands in a tokamak plasma
Creators
- 1. FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, PO Box 1207, 3430 BE Nieuwegein (Netherlands)
- 2. University of California at Davis, Department of Applied Science, Davis (United States)
- 3. Institut fuer Plasma Physik, Forschungszentrum Juelich, EURATOM Association (Germany)
Description
Small-scale structures with high poloidal mode numbers (m=10-20) have been observed in the TEXTOR tokamak plasma with pulsed radar reflectometry and an electron cyclotron emission diagnostic, in conjunction with large 2/1 and 1/1 islands. The small islands have a peaked density profile, similar to that of the simultaneously observed large-scale 2/1 islands. This together with the observation that high-frequency density and temperature fluctuations are very pronounced near the X points of the large islands hints to a strongly perturbed magnetic topology around the X points
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 94
- Journal Issue
- 8
- Journal Page Range
- p. 085001-085001.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36069086
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CYCLOTRONS; ELECTRON EMISSION; FLUCTUATIONS; MAGNETIC ISLANDS; MAGNETOHYDRODYNAMICS; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; RADAR; TEXTOR TOKAMAK; TOPOLOGY
- Descriptors DEC
- ACCELERATORS; CLOSED PLASMA DEVICES; CYCLIC ACCELERATORS; EMISSION; FLUID MECHANICS; HYDRODYNAMICS; MAGNETIC FIELD CONFIGURATIONS; MATHEMATICS; MEASURING INSTRUMENTS; MECHANICS; RANGE FINDERS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; VARIATIONS
Optional Information
- Notes
- (c) 2005 The American Physical Society
- Collaborations
- TEXTOR Team